In the first installment of Spinoff Online’s “Blu-ray Collector,” Todd Gilchrist assesses such new releases as Star Trek Into Darkness, Star Trek: Stardate Collection and It’s Always Sunny in Philadelphia: The Complete Season 8.

Yesterday’s release of Predators reaffirmed one fact about classic horror movies: If you want to make a successful sequel, you have to up the ante – literally. Here are some other sequels that moviemakers may want to consider.